Calculating machine



J. c. WAHL.I

CALCULATING-MACHINE.

APPLICATION mu) SEPT. 22 1917.

1,349,024, PatentedAug. 10,1920.

1 SHEETS-SHEET lmama: EMS-2933i WEEEWE J. C. WAHL.

CALCULATING MACHINE. APPLlCATiQN man SEPT. 22, 1911.

J. C. WAHL. CALCULATING MACHINE. APPLICATION FILEDISEPT. 22, 1917.

Patented Aug 10,1920.

7 SHEETS-SHEET 3.

1. c. WAHL.

CALCULATING MACHINE. APPLICATION FILED SEPT. 22 1917.

. Patented Aug. 10, 1920.

I 7 SHEETS-SHEET 4.

J. C. WAHL.

CALCULATING MACHINE.

APPLICATION FILED SEPT. 22, 1917.

1,349,024, Patefited Aug. 10,1920.

7 SHEETS-SHEET 5.

J. C. WAHL.

CALCULATING MACHINE.

' APPLICATION FILED SEPT. 22, 1911.

Patented Aug. 10, 1920 7 SHEETS-SHEET 6.

J. C. WA'HL.

CALCULATING MACHINE.

APPLICATION HLED SEPT. 22, 1917.

1,349,024 PatenwaAugJo, 1920.

7 SHEETS-SHEET 7- unmzo STATES'PATENT OFFICE.

JOHN 0. Wm, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WAHL COMPANY, OF

WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

- CALCULATING-MACHINE.

Specification of Letters Patent. Patented, -Aug. 10, 1920.

Application filed. September 22, 1917. Serial No. 192,681.

To all whom it may concern:

Be it known that I, JOHN C. WAHL, a citizen of the United States, residin at Chicago, in the county of Cook and tate of Illinois, have' 'i'nvented certain new and useful Improvements in Qalculating-Ma chines, of which the following is a specification.

My invention is a calculating machine and is a further development of the VVahl crossfooting machine which is now being extensively marketed.

The object of my invention is to provide a calculating machine which will handle a greater variety of accounts than it is ossible to handle on the commercial ahl machine just referred to and to this end I have provided my herein described inven tion with two cross totalizers insteadof the single cross totalizer heretofore employed.

Another object of my invention is the provision of suitable actuating and gear controlling mechanism to enter the numbers into these cross totalizers.- I have further provided mechanism to the end that it is possible to determine for each of the cross totalizers independently of the other that the number which shall be put into the ma chine shall be entered either in addition or subtraction or not be entered at all.

Another object of my invention is the provision of a machine having a plurality of vertical totalizers which may be used simultaneously with the aforementioned cross totalizers and these vertical totalizers are provided" with cams which control the i operation of either one or both of the cross totalizers upon the operation of any of the numeral keys.

Another object of my inventlon is the a provision of adjustable cams on the vertical totalizers such that adjustment may be readily made for the various operations to be performed by the cross totalizer.

Another object of my invention is the provisionof a hand-operated calculating machine having a plurality of vertical totalizers and having two cross totalizers and providing means whereby the opera tions of either or both of said cross totalizers as far asaddition subtraction or nonoperation is concerned, may be predetermined for each zone to which corresponds a vertical totalizer.

Another object of my invention is the calculation on the vertical totalizers themselves, and further to make said cams readily adjustable so that any desired program of calculation for the cross totaliz ers may be easily set up. To this end I have provided an improved form of adjustable cam having two cam units, each of which is independently adjustable and both of which, when adjusted, are held firmly in their position by a single screw.-

; A further object of my invention is the provision of an improved gear control device by means of which the control ofeither of the cross totalizers may be determined either automatically or manually as to addition, subtraction or non-operation, and

any of the vertical totalizers may be controlled manually as to addition, subtraction or non-operation, these controls. being absolutely independent of one another, and also toprovide a universal correcting or error lever which, when operated, will throw all three totalizers (the vertical and'both of the cross totalizers) into the opposite of the condition which existed before said lever was operated. This function is extremely .useful for the purpose of correcting an erroneous insertion, the usual procedure in such cases being to re-insert the wrong number in the reverse direction, thereby canceling the first insertion, and then to insert the correct number. Obviously, when one has to consider the direction of an insertion into three separate totalizers, the separate reversing of each of these totalizers would be extremely liable to error, I have therefore, provided a universal cor recting lever. which by a single operation will throw all three of the totalizers into the reverse of their previous condition and My invention will be more readily under stood by reference to the accompanying figures, of which- Figure 1 is a front elevation on a somewhat reduced scale of the calculating part of my hereinafter described invention;

, Fig. 2 is a rear View of the calculating attachment;

Fig. 3 is a top plan View;

Fig. 4 is a perspective view of certain parts in-the actuator;

Fig. 5 is a perspective view of the gear controls for the cross actuators;

Fig. 6 is a perspective detail of the connections for the automatic control of the cross actuators;

Fig. 7 is a partial sectional View showing the side of one of the vertical actuators and the adjustable cams mounted thereon;

Figs. 8,9, 10, 11, 12 and 13 are details of the adjustable cams on the vertical totalizers and the mountings thereof;

Fig. 14: is a detail of the levers controlling so the automatic gear shifts, and

Fig. 15 is a view of the array of vertical totalizers and the cams which control the cross totalizers;

Fig. 16 is a perspective view of. some of the parts shown in Fig. 5, the view being taken from the front of the machine;

Fig. 17 is a separated View of some of the parts shown in Figs. 5 and 16;

Fig. 18 is a perspective View of the complete machine, some of the parts being omitted for sake of clearness.

The same reference numerals refer to like parts throughout all of the figures.

There is a large part of the mechanism 4 which is similar to the mechanism described in my co-pending application Serial No. 84,340, filed March 15, 1916, and this mechanismneed not be specifically described, but referred to only in a general way, reference being had to the description contained in said co-pending application for further particulars.

The typewfiter.-The machine is mounted on a typewriter 19, similar to that shown in my cited oo-pending application, said typewriter being provided with both letter and numeral keys, the latter, diagrammatically shown in Fig. 1 as 20, being connected by pull rods 21 to an actuator 130. This actuator is of the well-known Wahl construction and has for its function the conversion of the vertical motion of the numeral keys 20 into a differential rotation of a vertical master wheel 22 in a direction deter- 66 mined by a vertical gear shift rod 23, the

position of said rod being controlled by a crank arm 2-1t,mounted on a rocker 132 piv-, otally mounted in the framework of the machine. The particular mechanism by which the vertical motion of the numeral keys 20 is converted into differential rotation of the vertical master wheel 22 is described in detail in my cited specification .positions, the upper position determining that the master Wheel 22 shall add, the middle that it shall not operate, and the lower that said wheel shall subtract. The master wheel 22 is arranged to operate in 5 any one ofa number of vertical totalizers 26 to 34 inclusive, these totalizers beingmounted on a vertical truck 35, which is supported by rollers 36, 37 and 134 in the manner described in my cited application. This truck 35 is connected to the typewriter carriage 136 by a bracket 138, not shown, and advances step by step with the motion of said carriage as the numeral keys 20 are operated. Numbers are thus inserted in the totalizers one digit at a time and in a direction determined by the position of the vertical control handle 25.

In a large number of computations it is desirable, in addition to calculating numbers arranged in vertical columns also to obtain the crossfooting of numbers arranged in horizontal rows and in some cases transfer sub-totals of said horizontal rows, into a second totalizer, either for the purpose of accumulating a grand total of said sub-totals or for temporarily holding said sub-totals to be used later in the computation. In my cited application I have shown a machine having an array of vertical totalizers and a single cross totalizer and have also shown mechanism by which a number may be entered into the cross totalizer in addition or subtraction according to the predetermined form which was set up on the machine before the computation commenced. In my present machine I have added a second cross totalizer adapted to calculate numbers written in a horizontal line and by the addition of this second totalizer I have vastly enlarged the scope of the machine shown in my cited application.

'Reference to Fig. 1 will disclose that in addition to the vertical totalizers aforementioned, my machine is provided with a cross totalizer 38 and a second cross totalizer 39, both of said cross totalizers being adapted to be actuated by their associated cross master wheels 40 and 41 respectively.

The totalizers-All the totalizers used in my machine are those of the well-known Wahl form, saidform being thoroughly described in my cited application. It will suffice to say that the totalizers consist of a bank of gear wheels adapted to be actuated by a master wheel and to have numbers inserted in them one digit at a time. The totalizer gear wheels are connected by suitable carrying mechanism to provide for the carrying of the tens. The particular form of carrying mechanism which I have found most efficient is that of the Geneva lock type, provided with some means of unlocking the carrying chain at the actuated point. vA carrying mechanism of this type is also described in, great detail in my cited application. The cross totalizers 38 and 39 have similar mechanism to the vertical totalizers 26 to 34 inclusive, and said cross totalizers are mounted upon a cross truck 42, which slides in suitable bearings 43 and 44 rigid in the framework. The vertical totalizers 26 to 34 inclusive may be provided with cams 45 and 46, which, through suitable mechanism hereinafter to be described, control the cross master wheels 40 and 41 respectively. The structure of these cams is shown in detail in Figs. 9 to 13 inclusive and will be hereinafter more fully described.

The actuator-As before noted, vertical motion of the numeral keys 20 is transformed into differential rotation of the vertical master wheel 22. This is accomplished by the depression of said key actuating a certain rock shaft 47 and a sector shaft 48, said shafts being rotatably mounted in'the vertical actuator 130. A sector ,49 on the sector shaft 48 is adapted to engage and rotate either a gear 50 or a reverse gear 51, according to the position of the vertical control rod 23. The aforementioned sector and rock shaft action is thoroughly described in my application and need not be further described here. The rock shaft 47 has a crank arm 52 attached thereto, said arm being con-- nected by a link 53 to a crank arm 54 mounted on the cross rock shaft 55, having mounted thereon a helical cam 56, which is identical in function with the helical cam 57, mounted on the vertical rock shaft 47. The rock shaft 55 has also mounted on it a second'helic'al cam 58, whose function will be hereinafter described. The sector shaft 48 has rigidly mounted thereon (Fig. 4) a crank arm 59, which isconnected by a link to a crank arm 61, mounted on the cross sector shaft 62, which is rotatably mounted'on the framework and on'which are mounted the cross sectors 63 and 64. Said cross sectors are indentical with the vertical sector 49 and are controlled by the respective helical cams 56 and 58 in the same manner as the sector 49 is controlled by the helical cam 57. It will be observed that the shafts 47 and 48 are connected to the shafts 55 and 62 by a parallelogram linkage, to the end that any motion of the shafts 47 and 48 will be duplicated in the shafts 55 and 62. The sector 64 serves to actuate the cross master wheel 40, and the sector 63 serves to acutate the cross master wheel 41, the direction of rotationof both of said master wheels being determined by gear shift mechanism hereinafter to be described.

The acutating mechanism also includes a certain master dog mechanism which has the function of unlocking the gear chain of the totalizers prior to the insertion of a number by any of the numeral keys 20. The action of said dog is thoroughly described in my cited application as to a vertical and a single cross .totalizer. However, in my herein described structure I have extended the rock shaft 55 so as to afford space to actuate a second cross master dog similar in function to the vertical master dog 65 (Fig.

7). In fact, the section shown in Fig. 7 may mechanism shown in Fig. 4, that is, by pro viding an additional rock and sector shaft in the cross actuator, said shafts being equipped with instrumentalities to actuate two separate totalizers and connecting said shafts by a parallelogram linkage to the vertical shafts 47 and 48, I am enabled to actuate simultaneously three totalizers by a single motion of any of the numeral keys 20. It is to be further noticed that the chain of mechanism from the numeral keys to'the totalizer remains the same in allthree cases, that is, it might be said that all of-the totalizers are at an equal distance mechanically from the numeral keys. This end is obtained by the expedient of providing an additional rock shaft and sector motion for each one of the totalizers and providing that the rock shafts and sectors are all actuated by the same key. By means of this expedient, lost motions, such as would be ob tained by actuating one master wheel from 'the keys and then driving the cross master of controlof the other two master wheels.

The gear control has for its further object the provision of an automatic reversing lever, which, when operated, will throw each of the master wheels into the reverse of its former condition, it being noted that the reverse of a non-operatingEcondition is a nonoperating condition. ach of the cross totalizers may be thrown into either automatic or manual control as to any of the three conditions. The vertical totalizers are, however,-controlled manually only. There is, therefore, a great number of possible combinations of the totalizers of this machine. The vertical totalizermay be in any one 01' three conditions. The cross totalizer 38 ma y be in any one of six conditions, that 1s, 11:

may be in manual addition, subtraction or disconnect, or automatic addition, subtraction or disconnect. Any one of the six conditions of the cross totalizer 38 may be combined with any one of the three conditions of the vertical totalizers 26 to 34 inclusive, thus making eighteen possible combinations. Similarly, the cross totalizer 39 may be in any one of six possible conditions, that is, it may be in manual addition, subtraction or disconnect or automatic addition, subtrac tion or disconnect. Any one of the six con ditions of the cross totalizer 39 may be combined with any of the aforementioned eighteen combinations of the vertical totalizers with the cross totalizer 38. This, of course, will give rise to one hundred and eight possible combinations of the three totalizers. When the three totalizers are in any one of'the one hundred and eight possible combinations anerroneous number may be inserted into the machine and in order to correct this error it is necessary to throw all of the totalizers intothe reverse of their former condition. The erroneous number is then again inserted into the machine, thereby canceling the original error and the correct number is then inserted. This operation requires that all three of the totalizers be simultaneously reversed when said totalizers are in any one of their possible one hundred and eight combinations. Since each one of the one hundred and eight combinations may be reversed, there are possible twice one hundred and eight or two hundred and sixteen combinations of the condition of the three totalizers. In order to accomplish this universal reversal, I have provided a single lever 66, which I shall hereinafter call the universal correcting lever, which, as will hereinafter be described, when operated, reverses all three of the-totalizers regardless of their previous condition.

The gear control for the vertical totalizers is substantially the same as thatshown in my cited application and as before noted is controlled by the position of the vertical control handle 25, subject, however, to the dominance of the universal correcting lever 66. These two levers, by their joint action, control'the position of the crank arm 24, which in its turn controls the: position of the vertical gear shift rod 23, thus determincited application,

from the ing whether the numbers set up on the keys 20 shall be entered into the vertical totalizer in addition or subtraction or not entered at all.- It will not be necessary for me to describe the mechanism by which the above recited functions are accomplished, since said mechanism is described in great detail in my cited application. Both of the cross totalizers 38 and 39 may be controlled in two distinct ways-first manually, and second automatically, by the travel of the typewriter carriage as the various numbers are entered one after the other. The manual control is operated by a handle 67 serving to control the cross totalizer 39, and a handle 68 serves to control the cross totalizer 38. The cross totalizers 38 and 39 may also be controlled automatically and this is accomplished by means of a set of cams mounted on the vertical totalizers, said cams controlling the position of two rollers 69 and 70, the roller 69 serving to control the master wheel 41, which serves to enter numbers into the cross totalizer 39 and the roller 70 serving to control the cross master wheel 40, which serves to enter numbers into the cross totalizer 38. The mechanism by which the automatic control of-these cross totalizers is accomplished will hereinafter be fully described.

Similarly to the machine shown in my I have provided a control change handle 71 for throwing the control of the cross totalizers from automatic to manual. However, the handle 71 difi'ers analogous-handle of the machine shown in my cited application, in that the manipulation of said handle will change the condition of both cross totalizers 38 and 39 simultaneously. When the handle is in the position shown in Fig. 1, both cross totalizers 38 and 39 are under automatic control, that is, the motions of their associated master wheels are determined by the position of the rollers 69 and 70, these rollers being located in appropriate positions by the action of the cams 45 and 46.

The motion of the cross master wheel 40, consequent upon the operation of the numeral keys 20, is determined by the position of a gear shift rod 72, which has a function analogous to the ear shift rod 23. When the gear shift rod %2 is in one position, operation of the numeral keys 20 causes the master wheel 40 to rotate in a direction determining addition. When the gear shift rod 72 is in its alternative position, the master wheel 40 rotates in a direction to determine subtraction and when said rod is in a position midway-between the two aforementioned. positions, the master wheel 40 W111 not operate at all upon operation of the numeral keys 20, but will-remain stationary. This last condition corresponds to the disconnect position of the machine. The

necessary to enter into a detailed description of said mechanism. 7

Referring now to the cross master wheel 41, it will be observed that said wheel is mounted on a shaft 73, which is rotatably mounted in the framework of the machine.

The direction of rotation of the master wheel 41 is determined by the position of a certain gear shift rod 75, which, by mechanism identical with that present between the gear shift rod 23 and the master wheel 22 controls the direction of rotation of the wheels 41 upon the operation of any of the numeral keys.

The master wheel 41 is likewise adapted to be, thrown in any one of three conditions, that is, an adding, subtracting or non-operating condition, said conditions corresponding to three positions of the gear shift rod 75. The gear shift rod 75 is operated by a crank arm 77 mounted on a shaft 79, which is rotatably mounted in the framework (Fig. 1) and extends through the same (Fig. 3) and has mounted on its rear end a crank arm 81, mounted in which is a pin 83. The pos1- tion of said pin is determined by the floating cam 85, having a slot 87 therein and adapted to be controlled by the joint positions ofa pin 89 mounted in the center of said lever and a pin 91 mounted on the upper extremity thereof (Fig. 2). The lever 85 may pivot either about the pin 91 or the pin 89, and by means of these pins maybe thrown into the various positions occurring during the operation of the machine. The pin 91 may be operated from either of two primary sources, first, the roller- 69 and second the handle 67. Which one of these sources will be effectual to shift the pin 91 is determined by the positionof the handle 71. The connection between the handle 67 and the pin 91 may be traced as follows: Said handle is pivoted on the frame by a shaft 93,(F1g. 5) and is yieldably held in its three different positions by a cam 95,-having a series of notches 97 therein adaptedlto be engaged by a snapper 99 pivoted on the framework at 101 and held in engagement with said notches by a tension spring 103. The handle 67 is thus located in any of its three possible positions. Rigid on the shaft 93 is a crank 105, to which is pivoted a twisted link 107, the other end of which is pivoted to acrank arm 109, mounted on a shaft 111 rotatably mounted in the framework. Rigid to the shaft 111 is a second crank arm 113, pivoted on which is a link 115, the other end of which is pivoted to a bell crank lever 117, rotatably mounted on a stud 119 rigid to the framework. On the upper portion of the bell cranklever 117 is pivoted an oper-- ating plate 121(Fig. 17) which has a slot 123 therein, the upper portion of said slot being adapted to embrace and operate the pin 91, and the lower portion of said slot being wide and permitting the movement of said pin when said pin is operated through the automatic control. narrow portion of the slot 123 is in engage- Obviously when the Y ment with the pin 91, said pin will be shifted by the operation of the handle 67 through the chain of mechanism just described and to each of the three positions of said handle there will correspond a definite position of the pin 91. Consequently the floating cam plate v85 will pivot about the pin 89 and thus determine three positions of the pin '83 and consequently three positions of the gear shift rod 75.

When the cross totalizer 39 is thrown into automatic operation it is necessary to throw the plate 121 into the position as shown in Fig. 5. This is accomplished by the operation of the lever 71, in a manner which will be readily understood from the following description:

. Referring particularly to Figs. 5, 16 and 17, which show perspective views of the parts immediately under consideration, it

will be observed that the automatic shift handle 71 is pivoted on the framework by a stud 7 1 and is adapted to occupy either .of two positions, and is held in these positions by a suitable snapper 140. On the rear of the handle 71*,is ivoted the twisted link 7 6, which is pivoted ldoth to a bell crank 78, which ultimately serves to actuate the automatic to manual shift for the master wheel 40, and to a link serving to actuate the automatic to manual shift for the master wheel 11. The means by which thebell crank 78 controls the automatic to manual shift for the master wheel 40 is identical with the parts having a similar function in my cited application and need not be thoroughl described in this place. Reference 17 thereof, will disclose the connection between the automatic to manual shift lever 388 in said applicationand the parts operated thereby, the bell crank 433 in said application being identical in function with the bell crank 78 in my present application, and the master wheel 175 in said application being identical in function with the master wheel 40 in my present application.

The connection between the link 80'and the automatic to manual shift for the master wheel 41 may be traced as'follows: The link 80 is pivoted to a lever 125, which is pivoted on a stud 127 rigid in the framework. A fork 129 in the lever'125 engages'a pin 131 in'a lever 133 pivoted ona stud 135 mounted in the framework of the machine. Rigidly attached to the lever133, b studs 137 and 139, is a lever 141, pivots to which is a chain of mechanism from the bell crank 78 to the automatic to manual shift for the master wheel 40, and hence need not be further described. It will be noted in my cited application that in the lever 433 previously referred to there is a pin 442, which, when'the machine is put into manual operation, serves to throw out of action the roller 417, by which the master wheel 175 is automatically controlled. In my present application I have provided a similar mechanism to throw the roller 69 out of action when the master wheel 41 is thrown into manual operation. This mechanism consists inproviding a pin 149, which serves to operate the lever 151, which by mechanism hereinafter to be described is connected to said roller 69 and is operated by it.

The object of throwing the roller 69 out of operation when the machine is thrown into manual control is for the purpose of avoiding useless reciprocations of said roller during the passage of the several vertical totalizers 26 to 34 over it when the machine is in manual control.

I shall now trace out the connection between the roller 69 and the lever 151. The roller 69 is mounted on a crank arm 153 and the roller 70 is mounted ona crank arm 82, which is rigid with a rod 84. extending through the framework and having the crank arm 86 rigidly mounted on its rear end, said crank arm 86 corresponding in function to the crank arm 412 in Fig. 17 of my cited application. The crank arm 153 is rigid on a sleeve 155, which rotates in a bearing in the framework, thus affording a bearing for the rod 84. Rigidlyattached to the rear end of said sleeve is a crank 157 having a fork 159 therein (Fig. 2) which engages a pin 161 mounted on a rocker 163, (Fig. 6) which pivots on a stud 165 mounted in the framework. Extending from the rocker 163 and pivoted thereto is a link 167, which actuates a bell crank lever 169 pivoted on a stud 171 on the framework. A bell crank 169 has a horizontal arm 173, to which is pivoted a link 175, which is pivoted to an arm. 177, which is rigid with the lever 151 previously referred to, the lever itself being pivoted on a stud 179 rigid in the framework, and held against the pin 149 by a spring 217. An upwardly-extending arm 181 on'said lever has pivoted to it plates 183 and 185, which serve to actuate the pin 91 when the master wheel 41 is under control of the roller 69. It will not be necessary to describe in detail the precise way in which these plates 183 and 185 serve to plate 85.

operate the pin 91, since this action is analogous to that of the control of the pin 407 by the plates 410 in Fig. 17 of my cited application. When the machine is thrown from automatic to manual control, the plates 183 and 185 are, of course, disengaged from the pin 91 and said pin comes under control of the plate 121 which is pivoted on a stud 191 on the bell crank 117 which is pivoted on the stud 119 rigid in the framework and is adapted to beactuated by the handle 67 in the manner previously described.

I have described how the master wheel 41 is adapted to be controlled by the roller 69 when the position of the handle 71 deter- .mines that said master wheel shall be under automatic control.

I have also described how this master wheel may be controlled by the handle 67 when the handle 71 is thrown to a position determining that said master wheel 41 shall be under manual control. I shall now describe the mechanism of the universal correcting handle 66: The action of said handle in so'far'as the control of the vertical master wheel. 22 and the cross master wheel 40 is concerned is exactly the same as that set forth in my cited application and need not be further described, since reference thereto will disclose that the links 384 and 385 (Fig. 17) controlthe position of the pins 378 and 406 of the floating cam plates 377 and 405, shown in said application. Reference to Fig. 5 of my present application will disclose links 88 and 90, which are operated by the universal reversing handle 66 precisely in the same manner as the links 384 and 385 are operated by the handle 389 in my cited application are extended and pivoted on a lever 195, which is also mounted on the stud 127 serving to support the lever 125. Rigid with the lever 195 is a lever 197 having a fork 199 therein, which engages a pin 201 rigid in a lever 203 mounted on 'a stud 205 in the framework. Rigidly mounted on the lever 203, by studs 207 and 209, is a lever 211, to which is pivoted a pair of links 213 and 215, in the ends of which is mounted the pin 89, which serves as a part of the joint control of the cam When the universal correcting lever 66 is moved, the central portion of all the cam plates are moved and all of the three totalizers are thus thrown into the reverse of their previous condition through the operation of the V-shaped slots in said cam plates upon their engaged pins.

The cross decimal carriaga-It will not be necessary to describe in detail the action of the cross decimal carriage 42 which serves of the heels (not shown) on the side p ates of the vertical totalizers 26 to 34. This pick-up and release motion is thoroughly briefly stated that the function of this pickup and release motion is to engage the decimal carriage 42 so that it will cooperate with the vertical totalizers as the same successively come into cooperation with the vertical master wheel 22. After the number has been entered into a vertical totalizer the cross decimal carriage 42' is thrown to the right by a spring in the well-known manner untilthe hook 92 engages with the next succeeding vertical totalizer.

The adjustable cams for the vertical totalz'zers.The vertical totalizers 26 to 34 inclusive are each provided with two cams for the purpose of operating the rollers 69 and 70. Either of said rollers may occupy any of three positions and thus it will be apparent that there are nine possible combinations of these rollers for any vertical totalizer. In order to meet this large number of possible combinations I have made each of the cams 45 and 46'adjustable to any one of three-possible positions. The set up of the machine maythus be readily made, since it is possible with each vertical totalizer to determine the desired operation for each of the cross totalizers 38 and 39. Reference to Figs. 7, 8, 9, 10, 11,12 and 13 will clearly show the construction of the adjustable cams. Mounted betweenthe side plates 96 and 98 of the vertical totalizers 1s a plate 100, (Fig. 11) having a stud 102 riveted therein Theifrontportion of the stud- 102 is threaded and adapted to receive a thumb nut 106. The plate 100' has two series of three holes 108 and 110, and the'cam 45 is provided with two projections 112 and 114, adapted to enter any one of the sets of holes 108 and 110. It will be noted that said holes are in pairs on three levels and these three levels determine the three positions of the cam 45 for addition, non-operation or subtraction respectively. The cam 45 is also provided with a slot Intermediate betweenthe cam 45 and the cam 46 is a plate 118 also provided with two sets of holes 120 and 122 for'the purpose of receiving projections similar to the projections 112 and cams 45 and 46 seating themselves in their T proper holes 108 and 110, and also 120 and 116 for the'purpose of clearing the. stud 102.

122. The thumb nut is then tightened and this serves to tighten the entire assemblage of the cam 46, the intermediate plate 118 and the cam 45 rigid to the totalizer side plates. It will be seen that it is thus possible to determine that when any particular totalizer is in the calculating zone that the cross totalizers 38 and 39 will operate in either addition, disconnect or subtraction, and any calculation which it is possible to perform with a vertical totalizer and two cross totalizers may be automatically set up i on my improved machine.

It is obvious that my herein described machine is enabled to do all the work which can be done on the machine described in my cited application, Serial No. 84,340, and in addition is able to do much more extended computations on account of being provided with the additional cross totalizer 39.

I shall now give an example of some forms of account which may be advantageously machine. While I have described my adjustable cams as consisting of two distinct cams, it is obvious that this is not at all necessary, since eitherthe cam 45- or the cam 46 may be omitted entirely and be replaced by a spacing plate and the remaining cam will be equally adjustable. The device I have herein shown is very well suited to be used with my single cross totalizer machine described in my cited application, Serial No. 84,340.

Having described the mechanical opera-' tion of my invention, I will now give a few instances of specific forms of account which computed on my herein described may be advantageously computed on my improved machine. The first example I will give is that of the form below, in which the numbers are written in seven columns as in- Columns 1 and 2 are debits of labor and material. Columns 3 and 4 are credits in the formof cash and credits by contra accounts. Column 5 is the total debits, that is the sums of columns 1 and 2. Column 6 is dlcated.

1 2 3 4 5 6 7 Debits. Credits. 7 Total Total Balances.-

debits. credits. Labor. Material. Cash. Contra acct. 123 456 527 86.63 19.12 17.51 789 987 374 896 765 543" the total credits which consists of the totals of columns 3 and 4. Column 7 is the balance or the difference between column 6 and column 5.. This balance may, of course, be

either adebit or a credit balance.

The machine is put under automatic control and the cams 45 and 46 are set to control the cross totalizers aS indicated in the table below:

1 2 3 4 5 6 7 Totalizer 38 0 0 0 Totalizer 39 0 0 0 0 0 denotes a disconnect position of the camv controlling the totalizer.

In writing this bill, the numbers in columns 1 and 2 are accumulated in the cross totalizer 38, which will show a total of $36.63. The numbers are then. written-in columns 3 and 4 and are added in totalizer 39, which will then show a total of $19.12. The carriage is moved to column 5 and the number 36.63 iswritten and left in the totalizer 38. The carriage is then moved to column 6 and the number 19.12 in totalizer 39 is written and is subtracted from tocolumn 1 will accumulate the total labor;

aizer 38, which will'show that in column 2 the total material; that in column 3 the total cash received, and that in column 4 the total contra accounts received. The. totalizer in column 5 will accumulate a grand total of all the debits entered in a Division 2. Freight. Pass.

Division 1.

Freight.

days run and this total may be checked against the sum of columns 1 and 2. Similarly the vertical totalizer in column 6 will accumulate the grand total of all the debits and may be likewise checked against the grand total of columns 3 and 4:. lhe vertical totalizer coiiperatingwith column 7 will accumulate the totals of the days balances, and, since these balances may be either debits or credits, will show the net balance of the total days accounts.

' I will now give another example of a form of account in the computation of which my herein described machine may be advantageously used. This form occurs in railroad work and is for the purpose of keeping an account of the freight and passenger business of the various divisions day by day through the month, the grand total of all the freight, the grand total of allthe assenger business, and the grand total 0 all the daily receipts. It is also desired to knowthe totals of these various items by the month, that is, for example, to know the total freight receipts of Division 1 per month, the total passenger; receipts of this division, etc. A specimen of this account is given below and will be" self explanatory.

Total. Pass.

Total.

Divisions.

Receipts.

Pass.

The freight receipts of the various divi-. sions are accumulated in cross totalizer 38. The passenger receipts are accumulated 1n cross totalizer 39. After theitems for Division 3 have been written, totalizer 38 W11].

show the total of the freight receipts of the'three divisions and this total is written but left in the totalizer. Totalizer 39 will show the total passenger receipts and when this total is written 1t is subtracted from cross totalizer 39 and added in cross totalthe total receipts of passen er and freight for the three divisions. T e carriage is then moved tothe last column and as the grand total shown .by totalizer 38 is written it is subtracted from the totalizer, leaving it clear for the next days entries. There is provided a vertical totalizer over each one of the columns and these totalizers will, of course, accumulate the grand totals of the various items day by day. .When the end of the month is totals and at the end of the month when all the totals'have been written all of the totalizers (the vertical and two cross) will stand clear ready for the next months record.

I have given the above example as typical of one of a large number of forms. The possibilities of my machine may be expressed enerally by saying that there are two totafizers, each of which, or both, may be made to act in addition, subtraction or disconnect, in any zone of the worksheet.

My herein described machine will also be found of great use in computing those forms of accounts which have to do with numbers in two different tables, a ood example of which is the ordinary bill or electric light, which computes numbers denoting kilowatts and also computes money. These two computations may be carried on simultaneously in my improved machine. One of my cross totahzers may be arranged to compute in kilowatts and the other to compute in money. Numerous other instances of what I may term double table work may be given, such, for example, as a dry goods blll, in which computations are made in yards and fractions of a yard simultaneously with computations made in money. It will be noted that owing to the expedient 'of mounting my two cross totalizers upon a single jumping truck thatthe greatest capacity of izer frameworks rom which the comput-.

either of said totalizers is determined by the distance between the master wheels 40 and 4.1. Of course, it may be necessary in some instances to disable the customary decimal lock on the cross totalizers, particularly in the event of working with cross totalizers computing in different tables, since a space in one cross totalizer may correspond to a'number in the other cross totalizer. However, the particular decimal lock used on the Wahl machine is very readily rendered inoperative by the simple expedient of shortening the tails of the swinging arms in the totalizer.

In case it is so desired, my improved machine may be used as what is known as a transfer machine, having all the functions of the machine described in my issued Patent No, 1,148,732, August 3, 1915, since a number may be transferred from either of the cross totalizers to theotherbythe simple expedient of arranging one of them to subtract while the other adds. It will be noted that in arranging a transfer machine of this type that have obviated an objection which was present in the machine of'my cited patent in that in said machine the width of the columns or, zones of, computation is determined "by the' distance apart of the two master wheels; It is evident'that in my herein described invention the distance between the two' master wheels has nothing whatever to do with the locations of the computing zones. on the worksheet. These zones are determined by the positions of the vertical totalizers. it is not desired to accumulate grand totals of the days work, the totalizers 26 to 34 may be replaced b dummies, that is, totalin'g mechanism has been removed. All the mechanism necessary on the, vertical truck of the machine to enable computation to be done in the cross totalizers is a set of connecting locations for the pick-up hook of the cross decimal carriage and a support of some kind for the cams determining the position of the rollers 69 and 70. Accordingly I have made these machines with the vert caltotalizers omitted and replaced .by frameworks providing only the heels which pick up the hook 92 and cams 45 and 46.

Many changes and alterations may be made in my herein described invention without departing from thespirit thereof, since- I claim:

1. In a calculating machine, the combination of a framework, a main carria ,means to advance said main carriage re ati ve to said framework, an escapement to control 16 the-advanceof said carriage, a subsidiary In case a front support for the carriage, means to intermittently connect said subsidiary carriage to said mam carriage at certa n predetermined locations in the travel of said main carriage, a set'of numeral keys, a plurality of number-inserting mechanisms simultaneously controlled by said numeral keys, and a plurality of totalizers mounted on said subsidiary carriage, each of said totalizers being located on said subsidiary carriage in a position to an independent control for said actuating mechanisms whereby the manner in which any actuating mechanisms shall aflect its associated totalizer as a result of the action. of the numeral keys ma be determined irreadapted to be intermittently connected spective of the action 0 any other actuating mechanism on its associated totalizer.

3; In a calculating mach1ne, the comb1nation of a main carriage, a set of. numeral keys, a totalizer mounted on said main carriage, an actuating mechanism for said totalizer, acontrol for whereby its action on said totalizer maybe determined, a subsidiary carriage adapted to be intermittently connected to said main carriage, a plurality of totalizers mounted on said subsidiary carriage, an actuating mechanism for each of said totalizers, a gear control for each of said actuating mechanisms to control the action of said actuatin mechanism on said totalizers as a result 0 the action of said numeral keys, and a common reverse effective on all of said actuatin mechanisms whereby each may be thrown into the reverse of its former condisaid actuating mechanism tions regardless of the condition of its individual control.

4. In a calculating machine,the combination of a traveling member, a totalizer, actu-' ating means therefor, means under control of said traveling member to determine the action of said actuating means on said totalizer, a second totalizer, actuating mechani'sm therefor, means mounted on said travto determine the effect of said mechanism on sand. second total a common reverse for said acelingmember actuating met, an

tuating mechanisms, said reverse being adapted to throw said actuating mechanisms into the reverse of their previous condition regardless of the condition determined by the position of s'aidtraveling member.

5. In a calculating machine, the combination of a traveling member, a cam mounted 'on said traveling mem er, lever operated no adapted to be operated by said second cam,

and said second lever being mounted concen trio with said lever.

7. In a calculating machine, the combination of a traveling member, a lever operated by said cam, a second cam mounted on said traveling member, a second lever adapted to be .operated by said cam, and a shaft on which said second lever is mounted, said shaft extending through atube, which serves as a mounting for said first lever.

8. In a calculating machine, the combination of-a set of numeral keys, a totalizer, a

second totalizer, actuating mechanism connecting said numeral keys to said totalizer, whereby numbers set up on the keys may be entered into said totalizer simultaneously, gear controlling mechanism for each of said totalizers, whereby it may be determined that the numbers set up on said key may be set up in said totalizers in either addition or subtraction, a lever adapted to actuate one of said gear controls, a second lever adapted to actuate the second of said gear controls,

one of said levers being mounted on a tube pivoted in the framework and the second of said levers being mounted on a rod extending through said tube, whereby said levers are concentrically mounted, and cams mounted on one of said totalizers and adapted to contact with and operate said levers, said cams being capable of simultaneous adjustment, whereby the zone of contact of said cams with said levers may be determined.

9. In a calculating machine, the combination of a totalizer, a'gear control for-said totalizer, a second totalizer, a gear control for said second totalizer, a lever, a tube on which said lever is mounted, said tube being pivoted in the framework, a connection from said tube to one of said gear controls, a second lever, a shaft extending through said tube, said shaft acting as a mounting for said second lever, and a connection from said shaft to the second of said gearcontrols.

10. In a calculating machine,the combination' of a traveling member, a series of cams mounted on said travelin member, a lever adapted to be operated by said series of cams, said lever being mounted on a tube pivoted in the framework, 8, tot lizer, a gear control for said totalizer, connections between said tube and said gear control,whereby the operation of said lever changes the condition of said gear control, a second series of cams mounted on said traveling member, a lever adapted to be operated by said second series of cams, a shaft pivoted in said tube and servingas a mounting for said second lever, a second totalizer, a gear control therefor, and an operative connection between said shaft and the gear control for said second totalizer.

11. In a calculating machine, the combination of a traveling member, a series of cams mounted on said traveling member, a lever adapted to be operated by said series of cams, said lever beingv mounted on a tube pivoted in the framework, a totalizer, a gear control for said totalizer, connections between, said tube and said gear control, whereby the operation of said lever changes the condition of said gear control, a second series of cams mounted on said traveling member, a-lever-adapted to be operated by said second series of cams, a shaftpivoted in said tube and serving asia mounting for said second lever, a second totalizer, a gear control therefor, and an operative connection between said shaft and the gear control for said second totalizer.

12. In a calculating machine, the combination of a set of numeral keys, a universal member adapted to be'actuated a constant amount on the actioni of any of said keys, a differential member adapted to be actuated a differential amount on the action of any of saidkeys, a cam on said universal memher, a sector on said differential member, connections between said cam and said sector, whereby the former operates the latter, a second universal member, parallelogram link connections between said first universal member and said second universal member, a pair of cams on said second universal member, a second differential member, a parallelogram link connection between said first differential member and said second differential member, a pair of sectors on said second differential member, the arrangement of the cams and sectors being that the three cams simultaneously call into operation all three sectors whereby the operation of a single numeral ke may actuate all three sectors an equal di erential amount.

13. In a calculating machine, the combination of a totalizer consisting-of a framing having slots therein, a cross bar located in said slots, a cam adapted to be located on saidrcross bar, and a series of locating notches in said cross bar, a pair of locating projections on said cam, and a screw connection to hold said projections into engagement with said locating notches on said cross bar.

14. In a calculatingmachine, the combination of a totalizer comprising'a framework,

tion of a a bar mounted in said framework, a series of locating notches in said bar, a cam having a pair of projections adapted to be lo cated by said notches, a second cross bar having also a set of locating notches therein, a second cam having projections to enter said notches, and a clamp adapted to hold said cams and bars firmly in their located position.

15. In a calculating machine, the combination of a totalizer, a framing therefor, a pair of adjustable cams mounted in said framing, each of said cams being capable of ment to any of three positions, and a common means to clamp said cams in their adjusted positions.

16. In a calculating machine, the combination of a totalizer, a framing, a pair of adjustable cams mounted in said framing, each of said cams being capable of adjustment to any of three positions, and a screw and nut adapted to clamp'said cams in their adjustable position.

17. In a calculating machine, the combination of a jumping totalizer, a second jumping totalizer, said totalizers being mounted on the same jumping truck, a' gear control for the first of said totalizers, a gear control for the second totalizer, a traveling member and a pair of cams mounted on said traveling member to determine the position of said gear control.

18. In a calculating machine, the combination of a jumping totalizer, a second jumping totalizer, said totalizers being mounted on the same jumping truck, a gear control for the first-of said totalizers, a gear control for the second totalizer, a traveling member and a pair of independently adjustable cams mounted on said traveling member to determine the position of said gear control.

- 19. In a calculating machine, the combinajumping totalizer, a second jumping totalizer, said totalizers being mounted on the same jumping track, a gear control adj ustfor the first of said totalizers, trol for the second totalizer, a traveling member, and a pair of. adjustable cams mounted on said traveling member to determine the position of-said gear control. 7

20. In a-calculating machine, the combination of a main calculating portion, a gear control located'therein, a floating lever .located on said main calculating portion, and operative on said gear control, a subsidiary calculating portion, said subsidiary portion including two gear controls, a floating lever mounted on said main portion, a second floating lever mounted on said main portion, connections between said second lever and one of said gear controls, and a third floating lever mounted on said subsidiary portion and controlling the other of said gear controls of said subsidiary portion.

21. In a calculating machine, the combination of a main calculating portion, a gear control located therein, a floating lever located on said main calculating portion, and operative on said gear control, a subsidiary calculating portion, said subsidiary portion a gear conincluding two gear controls, a floating lever mounted on said main portion, a second floating lever mounted on said main portion, connections between said second lever and one of said gear controls, a third floating lever mounted on said subsidiary portion and controlling the other of said gear controls of said subsidiary portion, and means for displacing all of said floating levers simultaneously.

22. In a computing machine, the combination of atraveling totalizera frame work' therefor, a pair of cams mounted in said framework and extending substantially the length of said totalizer, said cams being adjustable-to a plurality of positions, and fol-' lowers operated by said cams adapted to selectively control computation.

In witness whereofI have hereunto subscribed my name.

' JOHN G. WAHL. 

